PADAUK PMC251-S08

PMC251 is an IO-type, parallel-processing, fully static processor based on OTP for program storage. This processor has two processing units that can execute two programs in parallel. It also provides a single-core processing mode similar to traditional MCUs. It is based on the RISC architecture and incorporates the patented (Field Programmable Processor Array) technology. PMC251 can operate in the FPPA™ dual-core parallel processing architecture or the traditional single-core architecture. Most instructions are executed in one instruction cycle, and only a few instructions require two instruction cycles.

PMC251 has a built-in 1KW OTP program memory and 60 bytes of data memory for the two FPP units. Additionally, PMC251 provides a 16-bit hardware counter. Common peripheral functions, such as UART and PWM, can be easily implemented using the FPPA™ architecture.

• Operating modes: 2 FPPA™ parallel processing modes or conventional MCU operating mode
• 1KW OTP program memory
• 60 bytes data memory
• 99 instructions
• Most instructions are single-cycle (1T)
• Programmable stack depth
• Direct and indirect addressing modes for data and instructions
• Bit manipulation instructions
• All data memory registers usable as index pointers
• Program code protection
• Separate I/O and memory address spaces for ease of development
• Clock modes: internal high-frequency oscillator, internal low-frequency oscillator, external crystal
• Built-in IHRC
• Built-in Band-gap hardware module with 1.20V reference voltage output
• Hardware 16-bit counter
• Fast wake-up
• 8-level LVD reset settings ~ 4.1V, 3.6V, 3.1V, 2.8V, 2.5V, 2.2V, 2.0V, 1.8V
• 12 I/O pins
• 2 external interrupt input pins
• I/O pins with 10mA current drive capability
• Per-pin configurable wake-up
• Operating frequency (combined 2 FPP processing units): 0 ~ 8MHz@VDD = 3.3V; 0 ~ 4MHz@VDD ≥ 2.5V; 0 ~ 2MHz@VDD ≥ 2.2V
• Operating voltage: 2.2V ~ 5.5V
• Operating temperature: -40°C ~ 85°C
• Power characteristics: Ioperating ~ 1.7mA@1MIPS, VDD = 5.0V; Ioperating ~ 8uA@12KHz, VDD = 3.3V; Ipower down ~ 0.7uA@VDD = 5.0V; Ipower down ~ 0.4uA@VDD = 3.3V